Railway-tie-adzing machine



F. V. CARIVIAN.

RAILWAY m AnzlNG MACHINE.

APPLICATION FILED DEC. 27. 1921.

Patented Aug. 29, 1922.I

3 SHEETS-SHE T l F. V. CARMAN.

RAILWAY TIE ADZING MACHINE.

APPLICATION FILED DEc.27, 1921.

Patented Aug. 29, 1922.

3 SHEETS-SHEET 2.

F. V. CARMAN. RAILWAY TIE ADZING MACHINE. APPLICATION FILED nEc.21.192|.

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I T l Aerating the same. left in' place, and the carriage is guided and.is had directly. from the ties.

suitable width to receive the 'tie plates. `isto be understood, however,that-although my invention is vherein described `and illusfilaire er:

earner carica.

FRANK'KV. CARMAN', OF OAKLAND, CALIFORNIA;

RAILWAY-TIE-ADZING MACHINE.

Specification of Letters Patent. f Patented, Aug 29, 1922,.

Application filed December 27, 1921. l Serial No. 524,951.

f 0 all whom 'it may concern:

Be it known that I, FRANK V. CARMAN, a

vcitizen of the United States, residing at Oakland, in the county ofAlameda and Sta-te of California',lhave invented certain new and usefulimprovements in Railway-Tie-Adzing Machines, of which the following is aspeciiication.

' My invention relates to a machine for hewing or cutting down the uppersurfaces of `railway cross-tives.l n In railway track maintenance, it isnecessary, from time to time, to replace .the tie plates upon which therails rest, and when so doing, it is customaryto hew or cut down `theupper surfaces of the ties, in the regions ofthe tie plates, in order toprovide new and sound seats for the new plates. This is es- Y peciallynecessary when the new plates are heavier or thicker than thosereplaced, so that the rail, when re-laid, will have the same height asit formerly had. The object of my invention, therefore, is to `provide amachine for thus cutting or adzing the ties quickly, accurately, andeconomically, therediy eliminating considerable hand labor, and

saving time." The time-saving feature of my invention is of particularimportance, affecting as it does the length of time that the track is`out of commission andthe consequent delay of traffic.

Broadly speaking, my invention comprises amovable truck or carriage,upon which is mounteda cutter and power means for op- One rail of thetrack is `partly supported thereby. Further support As the carriage ismoved alongthe track, `manually or otherwise, its cutter, in passingover the successive ties, hews therein a shallow kerf of a tie,enlarged, showing respectively 'a lhorizontal and an inclined kerf ascut bymyma-` chine.

" Fig 3 is a side elevation of my machine.

Fig. 4 is an end elevation thereof. Figs. 5 and 6` are detailedelevationsen larged, of one of the supporting rollers,

`viewed respectively from' the side and end of the machine. l

"Fig, 7 is a detailed elevation of one ofthe guiding and supportingwheels as viewed from the end of the machine.

F ig. S is a detailed elevation, enlarged, of the cutter shaft, asviewed from the side of the machine. y

Fig. 9 is a part sectional elevationofthe same, as viewed from theendof.the machine,

taken on the line 9-9 Vof Fig. 8.

Figs.` lOand l1 are detailed sectional'plan views taken respectively onthe lines `10--10 and 11-11 of Fig. 8.

` Fig. l2 is a plan view ofthe cutter head, taken on the line 12-12 ofFig'.` 8.

` In the drawings, ,and referring particular- 'ly to Figs. 1 and 4thereof, the reference numeral l designates the rail which is leftinplace, and 2 the tiesv which are to bek adzed for the receptio-n of thetie plates ofthe other rail, rIhis second rail and said` tie plates havebeen removed, and therefore kdo not appear in the drawings.

My machine comprises a truck or carriage frame 3, which is supportedatfone side by flano'ed wheels 4 adapted to runonthe rail l. t aidwheels, as shown in Figs. l, 4 and7, lare flanged upon both sides, theinner flange 5`being greater in diameter than the outerr flange G, sothat when crossing frogs, although said outer flange will ride up andlift the wheel off the rail l, the inner flange 5 will stillprojectbelowv the top of said rail and serve as a guide. The other side oftheframe 3 carries a longitudinally disposed 11p-turned channel member 7,Figs. l, 3,4, i and 6, beneath which are 'mounted ay series ofsupporting rollers or wheels 8 adapted to run upon the surfaces of theties 2. Therel are a sufficient number of such wheels or rollers 8 toinsure adequate bearing support for that side of the carriage.

The frame 3 carries a platform 9, Figs. l, 3 and k4, upon which ismounted an engine 10. A. pulley ll upon the shaft of said engine isconnected by a belt l2 with a pulleyl fixed upon a vertical shaft 14.Said shaft is partly supported in a suitable channel-section bracket 15,and carries at its lower end a cutter head 16. This cutter head may beof any form or construction suitable for hewing a kerf the ties 2, butin its preferred form as shown in Figs. 8, 9 and 12 of the drawings,comprises a spiderhaving arms 17 to which are secured adjustable andremovable blades 18, said blades being sharpened for cutting upon theirlower and outer edges, as shown at 19.y As the entire machine Vis movedalong the track', by hand or otherwise, the vcontinuously revolvingcutter head I16v hewfs a shallow groove across each ysucceeding tie 2,as shown 1n sec- .tion at y20 in Fig. 2a. The depth of said `grooveis'regulated by mechanism to be described presently. Moreover, thebottom of said bar 23 from the position shown in full lines in Figs. y9and 11, the bearing block 21 may be shifted laterally, and said barreplaced at the other side, as shown by the dotted lines. This shiftsthe upper end of the shaft 14, causing it to assume an inclinedposition, and thereby causing the cutter 16 to make the inclined slotshown in Fig. 2b.

The lower portionof said shaft 14 is carried in a bearing block 24,Figs. 8 and 9, seated within the channel member 7, and adapted foryrocking movement therein, as

,- shown. Above said block 24, and separated therefrom by a thrustbearing 25, is a collar 26 which is compelled to rotate with the shaft14 by keys 27, but within which said shaft is free to slidelongitudinally. A second collar 28 is spaced above the collar 26, and isadjustably secured to said shaft A'by 'a nut 29. A compression spring 39interposed between the collars 26 and 28, normally holds the shaft 14 atthe upper limit vofits vertical movement, in which position the cutterhead 16 is raised above the surfacesof the ties and is thereforeinoperative.

T he eXtreme upper end of the shaft 14 has a thrust bearing within ablock 31, Figs.

l-8 `and 9, carried by a screw 32 which, is

threaded through a nut and is provided at` its upper end with a crank orhandle Thenut 33 is slidably mounted in guides 35, Figs.v 8, 9 and 10,which permit it toniove laterally to follow the shaft 14 when the latteris shifted away from its true vertical kposition as `described above.Screwing down the thrust block 31 by means of the handle 84 thus lowersthe shaft 14, against the action of the spring 30, to bring the cutterhead 16 into operative position, and also to regulate the depth of thecut. Moreover, if it be desired to skip one or more ties entirely, thecutter 16 can be raised, out of its operative position, by means of saidhandle 34, without stopping or otherwise interfering with the operationof the machine. In order to prevent slipping of the belt 12 when theupper end of the cutter shaft 14 is shifted inwardly, there may beprovided a tightener for said belt of any suitable form, indicated at 36in Fig. 1 of the drawings.

1 claim 1. A railway-tie adzing machine comprising a carriage adapted tobe moved along a railway track; a substantially vertically disposedrotatable shaft, carrying at its lower end a cutter head adapted to hewacross the ties as the `carriage advances; a laterally rocking, rotarybearing for supporting the lower portion of the shaft on the carriage,and in which the shaft is vertically movable,.said bearing consisting ofa rocking block mounted on the carriagel and a collar fixed upon theshaft above and rotatably supported on theblock; a second collaradjustably mounted onl the shaft above the first collar; a springbetween said collars to normally hold the shaft up and lift its cutterhead above the ties; and a vertically and laterallv adjustable thrustbearing asso- K ciated with the top of theshaft, to verticall adjust andto tilt the shaft and cutter hea. 2. A railway-tie adzing machinecompris ing a carriage adapted to be moved along a railway track; asubstantially vertically disposed rotatable shaft, carrying at its lowerend a cutter head adapted to hew across the ties as the carriageadvances; a laterally rocking, rotary bearing for supporting the lowerportion of the shaft on the carriage,

and in which the shaft is vertically movable; a spring associated withsaid bearingand shaft to normally hold the shaft up and lift its cutterhead above thel ties; and a vertically and laterally adjustable thrustbearing associated with the top of the shaft, to vertically adjust andto tilt the shaft and cutter head, consisting of. a laterally' slidablenut mounted on the carriage, a block bearing on the shaft; and a screwthreaded through the nut land operating on the block.

3. A railway-tie adzing machine comprising a carriage adapted to bemoved along a railway track; a substantially vertically disposed.rotatable shaft, carrying at its lowerv end a cutter head adapted tohew across the ties as the carriage advances.; a laterally rocking,rotary bearing for supporting the lowerportionof the shaft on thecarriage, and in which the shaft is ver-V tically movable, said bearingconsisting of a rocking block mounted on the carriage and a collar fixedupon the shaft above and rotatably supported on the block; a secondcollar adjustably mounted on the shaft above the rst collar; a springbetween the two collars to normally hold the shaft up and lift itscutter head above the ties; and a vertically and laterally adjustablethrust bearing associated with the top of the shaft7 to verticallyadjust and yto tilt the shaft and cutter head, consisting of a latlo Intestimony whereof l have signed my 15 name to this specification.

FRANK V. CARMAN.

